She offers specific case studies of how companies like Zappos.com, Moleskin, Twitter, Ma.gnolia, & Wordpress have become "agents of happiness" by infusing the pillars of happiness in their business models to make their customers/users happy.

My favorite implementation examples of the pillars are as follows (slides 124 and 134):

"5 ways to create feelings of autonomy:
1. give people tools to personalize their experiences
2. build tools that democratize previous inaccessible industries
3. offer clear and attractive choices
4. be open and transparent
5. don't lock people in